Atoms, Ions and Isotopes

What do we call the green colored particle in this atom?

• Proton

• Neutron

• Electron

Tags

NGSS.MS-PS1-1

What type of energy holds the nucleus of the atom together?

• Heat Energy

• Kinetic Energy

• Nuclear Energy

• Atomic Energy

Tags

NGSS.HS-PS1-8

How many neutrons will be in a NEUTRAL atom of Bromine? **Round the mass number to the nearest whole number**

• 35

• 45

• 55

• 25

Atoms look EXACTLY like Bohr's model of the atom.

• True

• False

Rutherford's Gold Foil Experiment helped figure out two things about the atom, what were those two things?

• Electrons are located outside of the nucleus and the atom is mostly empty space.

• The atom has a nucleus that is negatively charged and the protons are located on the outside.

• The atom has no charge overall and the protons and electrons always have to be together.

• The atom has a positively charged nucleus and the atom is mostly empty space.

Tags

NGSS.HS-PS1-8

The rows on the periodic table are called:

• Groups

• Atomic numbers

• Periods

• Mass numbers

A cation is a positively charged ion.

• True

• False

If I want to make a Phosphorus ion with a -3 charge, how many electrons would I need?

• 15

• 16

• 17

• 18

Tags

NGSS.HS-PS1-1

The intentional splitting of a nucleus of a heavy and unstable isotope into smaller nuclei is called:

• Fission

• Fusion

• Radiaton

• Radioactive Decay

Tags

NGSS.HS-PS1-8

What is the atomic number for Magnesium (Mg)?

• 12

• 24.31

• Mg

• Magnesium

Tags

NGSS.HS-PS1-1